Theemometee



. a llw (fio Model.) H. GUTH.

THERMOMETER. No. 294,732. Patented Mar. 4, I884.

nlllllrlllllllrrllllrl If! (Ill/4iI!!!I!!!olrllllll lllll l II IIIII III.r?

UNITED STATES.

PATENT OFrIcE.

HENRY corn, or NEw YonK, n. Y.

THERMOMETER.

SPECIFICATION forming part of Letters Patent No. 294,732, dated March 4,1884.

I Application filed January 26, 1884. (No model.)

T0 at whom it may concern frames for thermometers, and particularly tothosewhich are permanently fixed to vessels to indicate the temperatureof the liquid con tained therein.

In order that others skilled in the art may know how to make and use myinvention, I

will now proceed to describe the same in connection with theaccompanying drawings, in Which ter with the protecting-casing turned toex pose the scale, and Fig. 2 is a centralvertical section of thedevice.

In the drawings, A represents a casting of any suitable material, and ofa size to corre spond with the mercury-tube to be used. The lowerportion, a, of this casting is circular,

and is provided with a downward projection,

12, through which the tube passes on its way to the vessel, and to whichthe pipe inclosing the end of the tube, and which secures thethermometer in place, is attached. The disk at is cut away on itsperiphery to form a circumferential flange, 0,, upon which theshell Brests and freely turns. The flange 0 should be of a width equal to thethickness of the material of which the protecting-sleeve is made, so asto present a smooth surface at the point of juncture. The sleeve orcylinder B is composed of any suitable material, and is, as shown inFig. 1, provided with an elongated opening, through which the scale isvisible when that side is turned to the front. It is free to revolve onits rest on the flange c to bring the solid portion in front of thetube, to protect the same from accidental contact with other surfaceswhen the thermometer is not in use or when the vessel to which it isattached 5 is being cleaned or filled. The upper end of the casting A isprovided with a disk, (2, of a diameter corresponding to that of thecasing B, into which it fits snugly.

As a means of securing the tube in place, I provide the cap 0, having adepending circumferential flange provided with internal screw-threads,which engage with corresponding screw-threads on the reduced portion ofthe disk (I. The diameter of this cap 0 is preferably the same as thatof the shell B, so as to form a neat joint, as at the bottom. Figure lis a front elevation of a thermomef Having thus described my invention,what I claim, and desire to secure by Letters Patent, 1s

1. The combination, in a thermometer-frame. of the vertical portion A,having integral therewith the disks d and a, the latter being providedwith the flange c, and the casing B, adapted to rest on the said flangec and be re- 6 5 volved at will, substantially as described.

2. The combinatiomin athermometer-frame, of the vertical portion A,.having integral therewith the disks d and a, the latter being providedwith the flange c, the casing B, adapted to rest onthe said flange c andbe revolved at will, and the cap 0, provided with screwthreads forsecuring it in place on the disk a, adapted to secure the casing againstvertical movement, substantially as described. 75

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses. HENRY GUTH. [n s.]

Witnesses:

HENRY O. BOTTY, FREDERICK A. BOTTY.

